elizabeth cohen is in atlanta for us this morning. tell me a little bit more about these peds and exactly what the risks are for the players and what they could make them do. >> right, soledad there's a whole array of peds, performance-enhancing drugs. the miami report mentioned several but two, human growth hormone and testosterones. so let's go over both of those. human growth hormone is something that is natural that human beings naturally have, it helps kids to grow and the advantages or at least what some athletes would tell you the advantages are is that it reduces fat and increases muscle. however, the potential dangers are bone and muscle pain, diabetes and heart disease, testosterone also something obviously that's natural, both men and women have it. when you take extra testosterone, some athlete also tell thaw it also increases muscle mass, makes you smaller and makes it easier -- makes you stronger and makes it easier for to you recover after a big workout, but the potential dangers, sleep apnea, heart disease and also if